Window screen



Dec. 10, 1929. J WATSON 1,739,429

WINDOW SCREEN Filed May 23, 1927 2 Sheets-Sheet 1 gmwnto'v /z /4 JamesId/c'zison J. WATSON WINDOW SCREEN Dec. 10, 1929.

Filed May 23, 1927 2 Sheets-Sheet 2 James M18072 YIIIIl-ll. ll

Patented Dec. 10, 1929 PATENT OFFICE JAMES WATSON, on MARINETTE,WISCONSIN WINDOW SCREEN Application filed May 23, 1927. Serial No.193,550. I

This invention aims to provide novel means for connecting a screen to aslidable Window sash, so that the screen may move with the sash, when itis desired to have the screen in 5 position, the construction being suchthat the sash may be operated without the screen, when desired, thescreen then being housed in an out of the way position within the windowframe. V

Other objects will be made manifest as the description proceeds, and itis to be under stood that a mechanic, working within the scope of whatis claimed, may make such changes as his skill may suggest,'withoutdeparting from the spirit of the invention.

In the drawings Figure 1 shows in elevation, a device constructed inaccordance with the invention, parts being broken away, and parts beingin 9 section;

Figure 2 is a longitudinal section of the structure shown in Figure 1;

Figure 3 is a cross section on the line 33 of Figure 1;

Figure 4-18 a sectional view showing the latch and thekeeper mechanism,

Figure 5 is a longitudinal section of the latch and keeper mechanism,where in parts appear that have been sectioned away in Figure 4;

Figure 6 is a transverse section taken through, the sash and the latchmechanism;

Figure 7 is a fragmental section taken about on the line 7-7 of Figure 1Figure 8 is an elevation showing a slight modification in the latchmechanism;

Figure 9 is a transverse section of the structure depicted in Figure 8;

Figure 10 is a perspective view showing one corner of the screen.

The invention is shown in the drawings, as applied to a window whichconsistsof a single vertical sliding sash, but it is to be understoodthat the invention may be embodied, as well, in a two-sash window, thechange being merely one of duplication, and calling for no specificillustration.

The window frame is marked by the numeral 1 and includes stiles 2connected by a sill .3 carrying a table 11. Guide strips 1 and 5 Whenthe screen 12 is not in use, it is lowered,

extend upwardly from the sill 8 and are mounted on the stiles 2. Guidegrooves 6 are formed in the stiles 2, between the guide strips 4 and 5,the grooves 6 extending both upwardly and downwardly with respect to thesill 3; At a point well above thesill 3, the guide grooves 6 havetransverse extensions 7 the utility of which will be made manifesthereinafter. A slot 8 is formed in the sill, in the same plane with theguide grooves 6. A plate 9, preferably made of metal, is secured to thesill 3, and has an upstanding rib 10.

A screen, marked generally by the numeral 12, is mounted to slide in theguide grooves 6.

as indicated in Figures 1 and 2, andlies below the sill 3. The screenslides through the slot 8 in the sill 8. The screen 12 is made up of abottom rail 14, side rails 15, and a top rail 16, the rails being madeofmetal, and being connected together, and to the foraminous body 19 ofthe screen, in any desired manner, the edges of the body 19 of thescreen being received within the rails 1 1, 15 and 16. The bottom rail14 and the side rails 15 are u-shaped in transverse section, whereas thetop rail 16 has side walls which are extended laterally to form atransverse flange 17, the flange 17 being connected to an upstandingbead 18which is U-shaped in transverse section. In the bead 18 ismounted a metal rod 20 which, for the sake of reinforcement, preferablyis as long as the bead. Intermediate its ends, the rod 20 is suppliedwith a U-shaped keeper 21 which extends upwardly through the bead 18. Asshown at 22 in Figure 1, the flange 17 and the bead 18 are cut-away attheir ends, so that the flange 17 does not extend out quite to the outeredges of the side rails 15. As a result, the side rails 15 are mountedto slide in the guide grooves 6, but the ends of the flange 17 merelyslide on the exposed surface of the stiles 2, and the guide grooves 6are narrow enough so that the ends of the flange 17 cannot enter thegrooves. When, however, the screen 12 is raised far enough, thescreencan be moved horizontally,

as shown by the arrow A in Figure 1, the ends of the flange 17 enteringextensions 7 (Figure 2) at one side or the other of the window A sash 23is slidable on the stiles2'oftheframe 1 between the guide strips: 41and:51

The sash 23 includes a bottom rail 24 provided in its lower surface witha groove' 25 which is adapted to receive the rib 10 on the plate 9 toafford a tight closure when the sash- 23 is lowered upon the sill 3 asshown-in Figure 2. In the lower 'edge of the bottom rail 24'of the sash23 there is a groove 26 which is adapted to receive the bead 18 on thescreen 12, when the upper edge of the screen is coupled to the: loweredgeof thesash 23, by a means which will be. described hereinafter. Inthe vertical edges of the'sash 23 there are grooves 27'which are alined"with the grooves 6 of the stiles 2, as shown in Fig ure 7 Weather strips28, preferably made offmetal, are mounted'in the grooves-27 of. the sash23 and slide, in the grooves 6 of the stiles 2. The weather strips'28'preferably are U shaped in cross section, andhave alittleresiliency, so that they will tend to expand and have a goodsliding lit in the grooves 6, without exertingtoo much drag when thesash 23 is raised and lowered. The strips 28'are' held in place by anydesired number of'securing elements 29, such as pins, mounted in thesash 23 and passing through the weather strips 28. The guidestrips'5foverlap the pins 29 at their outer ends. and, consequently,theisecuring elements 2'9cannot become detached accidentally, with aresulting. loosening of the weather strips 28: but. when the strips 5are removed, then the pins 29 may be detached, and the-weather strips 28pulled out.

This is done, generally, by raisinggthe sash 23 and reaching up intothe'lower'ends of the strips 28 with a suitable tool (not shown) thetool beingreceivedin theholesformerl'y occupied by oneof thepins'29, andthe'weather strips then bein'gpulled'down'and out of en'- gagement withthe sash 23.

. A seat 30, which may be an anger hole, is formed inthe lower edgeof'the' bottom rail 24 of the sash 23, and in the seat 30 is located alatch casing 31 which is T-shap'ed in cross section, the casing-beingprovided with a'foot plate 32,.which is countersunk into and'secured tothe bottom rail'24 of thesash 23. Considered as to cross section, thelatchcasing 31 comprises a body 33 and a troughshaped latch housing 34disposed at" right angles to'the body and communicating with the body.Near to itsupp'er end, thelatoh casing 31, has openings 35 and 36' whichare disposed opposite to each other, asindicat'ed in Figure 5. A latch37 is'locate'd fon the most part in the housing 34 and is mounted toswing on a pivot element 38 carried by the part 34. At its lower end,the latch 37 is beveled as shown at 39, the latch being supplied with ashoulder 40 disposed above the beveled portion 39. A spring tongue 41 issecured at one end to'the latch'37,,the lower end of the springtongue 41bearingslidably against the outer portion of the latch housing' 34p Thefunctiongof the spring 41 is to swing the lower end of the latch 37inwardly, into'the position shown in Figure 5, so that when the keeper21 on the screen 12 enters the lower end oftheb'ody 33 of the latchcasing 31, the keeper will first engage the inclined e'dge'39 ofthelatch 37 and tilt thelatch, and then. engage with theshoulder'40, asshown in'Figurefi, the construction'beingsuch that when the'sash 23 israisedand lowered, the

screen 12 will;be raised and lowered also. i

a" wear plate 45 mounted I on" the bottom rail 24 of the sash 23 abovethe'lifting'p'iece46'. When the knob 44 is mounted on the finger 42,as'in Figure 5,'thelatoh 37 is" operated by pushing on the button-44,-to disengage'the shoulder 40 from thekeeper 21, whereupon the sash 23may be raised and lowered independently of the screen=12, the screenremainingin concealed position below the' sill 3, as shownin Figured.

Sometimes it may be desirable to-operate the latch 37 by. pull ratherthan by push, and,

then, the knob 44 is detached from the finger 42 and is threaded onthefinger 43, the knob moving in the opening 35'.

The operation of the-device has been-dealt with hereinbefore, step bystep, in connection with the structure, but, generally stated, thescreen 12 maybe raised' and lowered along with the sash 23, becausethese parts/are connected through the instrumentality of the latchmechanism shown'in detailinFig. 5; but if the operatorwvishes' to raiseand lower the sash 23, leavingthe screen 12 in the concealed positionofFigure 1, hemay do this by tilting the latch 37 so as tofree it'fromthe keeper 21 on the screen 12.

Some persons may prefer a: superficial latch casingto' theonethat' ismounted in the bore-or'seat 30, as shown inFigure '5'. A Under suchcircumstances, recourse is had to the structures'shown in Figures 8and-9. Inthis formof'the invention, parts hereinbefore de seribed havebeen designated: by numerals previously used, with the s'ufliX a. Thelatch housing 34 and thebody 33 'of the easing 31 are made separate, andhave flanges leti mounted in a shallow recess 47 in the sash 23 and heldtherein by securing elements 48, such as screws.

What is claimed is In a device of the class described, a Window frameprovided ateach side With stiles having guide grooves, each groovehaving a transverse extension, a screen slidable vertically in thegrooves and including a transverse flange Which is long enough so thatboth of its ends can engage With the exposed surfaces of the stiles atboth sides of the Window frame to prevent the screen from movinghorizontally in the grooves and'disengaging the vertical edges of theclosure from the grooves,'each end of the flange being so shaped as tobe received in the aforesaid extension, thereby to permit a horizontalmovement ofthe screen in the frame and a disengagement of the verticaledges of the screen from the grooves, the grooves and the extensionbeing extended but part Way through the stiles.

In testimony that I claim the foregoing as my own, I have heretoafiixedmy signature.

JAMES WATSON.

